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Add human readable output to du(1)

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Thanks Jeffrey Picard!
This commit is contained in:
sin
2014-10-16 10:06:27 +01:00
parent 44319a3972
commit 4608d91c6d
3 changed files with 31 additions and 1 deletions
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27
du.c
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@@ -16,6 +16,7 @@ static char file[PATH_MAX];
static bool aflag = false;
static bool sflag = false;
static bool kflag = false;
static bool hflag = false;
static long du(const char *);
static void print(long n, char *path);
@@ -53,6 +54,9 @@ main(int argc, char *argv[])
case 'k':
kflag = true;
break;
case 'h':
hflag = true;
break;
default:
usage();
} ARGEND;
@@ -81,10 +85,31 @@ main(int argc, char *argv[])
return 0;
}
static void
print_human(long n, char *path)
{
long base = 1024;
long power = base;
char postfixes[] = {'B', 'K', 'M', 'G', 'T', 'P', 'E'};
int i = 0;
n = n * blksize;
while (n > power) {
power = power*base;
i++;
}
n = i ? n / (power / base) : n;
printf("%lu%c\t%s\n", n, postfixes[i], path);
}
static void
print(long n, char *path)
{
printf("%lu\t%s\n", n, path);
if (hflag)
print_human(n, path);
else
printf("%lu\t%s\n", n, path);
}
static char *